Re: Fix memory leak in cpufreq stats.

Ben Hutchings
2013-03-17T05:13:22Z

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On Mon, 2013-03-11 at 18:23 -0700, Colin Cross wrote:
> On Mon, Oct 15, 2012 at 1:30 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> > On Monday 15 of October 2012 02:48:28 Tu, Xiaobing wrote:
> >>
> >> Fix memory leak in cpufreq stats.
> >>
> >> When system enter sleep, non-boot CPUs will be disable.
> >> Cpufreq stats sysfs is created when the CPU is up, but it is not freed when
> >> the CPU going down. This will cause memory leak.
> >> signed-off-by: xiaobing tu <xiaobing.tu@intel.com>
> >> signed-off-by: guifang tang <guifang.tang@intel.com>
> >
> > I will push this patch for v3.7 in the -rc3 time frame if no one objects.
> >
> > Thanks,
> > Rafael
> >
> >
> >> diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
> >> index b40ee14..3998316 100644
> >> --- a/drivers/cpufreq/cpufreq_stats.c
> >> +++ b/drivers/cpufreq/cpufreq_stats.c
> >> @@ -328,6 +328,7 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
> >> cpufreq_update_policy(cpu);
> >> break;
> >> case CPU_DOWN_PREPARE:
> >> + case CPU_DOWN_PREPARE_FROZEN:
> >> cpufreq_stats_free_sysfs(cpu);
> >> break;
> >> case CPU_DEAD:
> >>
> >> Br
> >> XiaoBing Tu
> >> PSI@System Integration Shanghai
>
> This patch, commited as e37736777254ce1abc85493a5cacbefe5983b896 since
> v3.7, should also have gone to stable. It should apply all the way
> back to 3.0.

Queued up for 3.2, thanks.

Ben.

--
Ben Hutchings
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